Electrochromic devices with polymer electrolytes functionalized by SiO_2 and In_2O_3:Sn nanoparticles: Rapid coloring/bleaching dynamics and strong near-infrared absorption

摘要

We studied the optical properties and coloring/bleaching dynamics of electrochromic devices based on tungsten oxide and nickel oxide and incorporating polymer electrolytes functionalized by adding about one percent of nanoparticles of SiO_2 (fumed silica) or In_2O_3:Sn. SiO_2 improved the coloring/bleaching dynamics and In_2O_3:Sn quenched the near-infrared transmittance. Both of these effects can be important in electrochromic smart windows, and our results point at the advantage of a polymer laminated construction over a monolithic one.